Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking an Associate Scientist to join our Protein Development Group within Therapeutic Proteins, supporting therapeutic discovery and development programs by purifying and characterizing antibodies and other protein reagents. You will work in a collaborative, fast-paced laboratory environment, using chromatography, analytical techniques, and automated equipment to deliver high-quality protein reagents and well-documented experimental data.

This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

• Location: Tarrytown, NY
• Work model: On-site

Discover your role:

• Purifies antibodies and other protein reagents using chromatography platforms and automated laboratory equipment
• Executes and optimizes purification workflows using affinity, ion-exchange, hydrophobic interaction, and size-exclusion chromatography
• Characterizes purified proteins using SDS-PAGE, Western blotting, CE-SDS, analytical SEC, spectrophotometry, and related techniques
• Evaluates protein purity, concentration, recovery, aggregation, and overall sample quality
• Analyzes results and maintains accurate, timely experimental records in ELN and data recording systems
• Summarizes and presents purification and characterization data to managers, project teams, and scientific collaborators
• Troubleshoots technical challenges in collaboration with colleagues
• Manages multiple assignments and priorities while maintaining data quality and sample integrity

This role requires:

• Bachelor’s or Master’s degree in Biochemistry, Molecular Biology, Cell Biology, or a related discipline
• 0–2 years of relevant academic, internship, or industry laboratory experience in protein purification or characterization
• Hands-on experience with one or more purification techniques, such as affinity chromatography, IEX, HIC, or SEC
• Experience with one or more protein characterization techniques, such as HPLC, SDS-PAGE, Western blotting, CE-SDS, SEC, or spectrophotometry
• Ability to analyze experimental data and maintain accurate electronic laboratory records
• Strong organizational, written and verbal communication skills

Preferred qualifications:

• Experience purifying monoclonal antibodies, bispecific antibodies, or other complex protein formats
• Experience using ÄKTA chromatography systems
• Familiarity with automated purification or sample-processing equipment and experience working in a high-throughput or project-driven laboratory environment
• Familiarity with basic programming or scripting (e.g., Python or R) and an interest in applying computational tools to scientific data analysis and laboratory workflow improvement
• Ability to work effectively both independently and as part of a collaborative team

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all  qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

Where necessary, we disclose salary ranges for roles in all countries in which we operate.  The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits.  Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/. For other locations, additional information will be provided during the recruitment process.  If you have any questions, please speak with your recruiter. 

Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.

As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.

For jobs in Canada: this posting is for an existing position.

Salary Range (annually)